1 | /* |
1 | /* |
2 | CrossFire, A Multiplayer game for X-windows |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
3 | |
3 | * |
4 | Copyright (C) 1992 Frank Tore Johansen |
4 | * Copyright (©) 2005,2006,2007,2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 | |
5 | * |
6 | This program is free software; you can redistribute it and/or modify |
6 | * Deliantra is free software: you can redistribute it and/or modify it under |
7 | it under the terms of the GNU General Public License as published by |
7 | * the terms of the Affero GNU General Public License as published by the |
8 | the Free Software Foundation; either version 2 of the License, or |
8 | * Free Software Foundation, either version 3 of the License, or (at your |
9 | (at your option) any later version. |
9 | * option) any later version. |
10 | |
10 | * |
11 | This program is distributed in the hope that it will be useful, |
11 | * This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | GNU General Public License for more details. |
14 | * GNU General Public License for more details. |
15 | |
15 | * |
16 | You should have received a copy of the GNU General Public License |
16 | * You should have received a copy of the Affero GNU General Public License |
17 | along with this program; if not, write to the Free Software |
17 | * and the GNU General Public License along with this program. If not, see |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
18 | * <http://www.gnu.org/licenses/>. |
19 | |
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20 | The author can be reached via e-mail to mark@pyramid.com |
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21 | */ |
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22 | |
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23 | /** |
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24 | * \file |
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25 | * Low-level socket-related functions. |
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26 | * |
19 | * |
27 | * \date 2003-12-02 |
20 | * The authors can be reached via e-mail to <support@deliantra.net> |
28 | * |
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29 | * Contains some base functions that both the client and server |
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30 | * can use. As such, depending what we are being compiled for will |
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31 | * determine what we can include. the client is designed have |
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32 | * CFCLIENT defined as part of its compile flags. |
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33 | */ |
21 | */ |
34 | |
22 | |
35 | using namespace std; |
23 | using namespace std; |
36 | |
24 | |
37 | #include <global.h> |
25 | #include <global.h> |
38 | #include <sproto.h> |
26 | #include <sproto.h> |
39 | #include <cstdarg> |
27 | #include <cstdarg> |
40 | |
28 | |
41 | #ifdef __linux__ |
29 | #if HAVE_TCP_INFO |
42 | # include <sys/types.h> |
30 | # include <sys/types.h> |
43 | # include <sys/socket.h> |
31 | # include <sys/socket.h> |
44 | # include <netinet/in.h> |
32 | # include <netinet/in.h> |
45 | # include <netinet/tcp.h> |
33 | # include <netinet/tcp.h> |
46 | #endif |
34 | #endif |
47 | |
35 | |
48 | // use a really low timeout, as it doesn't cost any bandwidth, and you can |
36 | // force a packet when idle for more than this many seconds, |
49 | // easily die in 20 seconds... |
37 | // forcing an ack regularly. |
50 | #define SOCKET_TIMEOUT1 10 * 1000 |
38 | #define IDLE_PING 2. |
51 | #define SOCKET_TIMEOUT2 20 * 1000 |
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52 | |
39 | |
53 | void |
40 | void |
54 | client::flush () |
41 | client::flush () |
55 | { |
42 | { |
56 | #ifdef __linux__ |
43 | if (destroyed ()) |
57 | // check time of last ack, and, if too old, kill connection |
44 | return; |
58 | struct tcp_info tcpi; |
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59 | socklen_t len = sizeof (tcpi); |
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60 | |
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61 | if (!getsockopt (fd, IPPROTO_TCP, TCP_INFO, &tcpi, &len) && len == sizeof (tcpi)) |
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62 | { |
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63 | unsigned int diff = tcpi.tcpi_last_ack_recv - tcpi.tcpi_last_data_sent; |
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64 | |
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65 | rtt = tcpi.tcpi_rtt; |
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66 | rttvar = tcpi.tcpi_rttvar; |
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67 | |
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68 | if (tcpi.tcpi_unacked && SOCKET_TIMEOUT1 < diff && diff < 0x80000000UL // ack delayed for 20s |
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69 | && SOCKET_TIMEOUT2 < tcpi.tcpi_last_data_sent) // no data sent for 10s |
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70 | { |
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71 | LOG (llevDebug, "Connection on fd %d closed due to ack timeout (%u/%u/%u)\n", fd, |
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72 | (unsigned) tcpi.tcpi_last_ack_recv, (unsigned) tcpi.tcpi_last_data_sent, (unsigned) tcpi.tcpi_unacked); |
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73 | destroy (); |
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74 | } |
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75 | } |
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76 | #endif |
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77 | |
45 | |
78 | /** |
46 | /** |
79 | * Writes data to socket. |
47 | * Writes data to socket. |
80 | * |
48 | * |
81 | * When the socket is clear to write, and we have backlogged data, this |
49 | * When the socket is clear to write, and we have backlogged data, this |
82 | * is called to write it out. |
50 | * is called to write it out. |
83 | */ |
51 | */ |
84 | |
52 | |
85 | if (!outputbuffer.len || socket_ev.poll () & PE_W) |
53 | // write a nop to the socket at least every IDLE_NOP seconds. |
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54 | if (!outputbuffer.len) |
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55 | { |
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56 | if (last_send + IDLE_PING <= NOW && pl && pl->active) |
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57 | { |
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58 | // this is a bit ugly, but map1/map1a seem to be the only |
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59 | // nop'able commands and they are quite small. |
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60 | packet sl (mapmode == Map1Cmd ? "map1" : "map1a"); |
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61 | send_packet (sl); |
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62 | } |
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63 | else |
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64 | return; |
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65 | } |
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66 | |
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67 | if (socket_ev.poll () & EV_WRITE) |
86 | return; |
68 | return; |
87 | |
69 | |
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70 | last_send = NOW; |
88 | write_outputbuffer (); |
71 | write_outputbuffer (); |
89 | } |
72 | } |
90 | |
73 | |
91 | void |
74 | void |
92 | client::write_outputbuffer () |
75 | client::write_outputbuffer () |
… | |
… | |
102 | /* wrap back to start of buffer */ |
85 | /* wrap back to start of buffer */ |
103 | if (outputbuffer.start == SOCKETBUFSIZE) |
86 | if (outputbuffer.start == SOCKETBUFSIZE) |
104 | outputbuffer.start = 0; |
87 | outputbuffer.start = 0; |
105 | |
88 | |
106 | outputbuffer.len -= res; |
89 | outputbuffer.len -= res; |
107 | #ifdef CS_LOGSTATS |
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108 | cst_tot.obytes += res; |
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109 | cst_lst.obytes += res; |
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110 | #endif |
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111 | } |
90 | } |
112 | else if (res == 0) |
91 | else if (res == 0) |
113 | { |
92 | { |
114 | LOG (llevError, "socket write failed, connection closed.\n"); |
93 | LOG (llevError, "socket write failed, connection closed.\n"); |
115 | destroy (); |
94 | destroy (); |
… | |
… | |
120 | // just retry |
99 | // just retry |
121 | } |
100 | } |
122 | else if (errno == EAGAIN) |
101 | else if (errno == EAGAIN) |
123 | { |
102 | { |
124 | // delay till ready |
103 | // delay till ready |
125 | socket_ev.poll (socket_ev.poll () | PE_W); |
104 | socket_ev.poll (socket_ev.poll () | EV_WRITE); |
126 | socket_ev.start (); |
105 | socket_ev.start (); |
127 | return; |
106 | return; |
128 | } |
107 | } |
129 | else |
108 | else |
130 | { |
109 | { |
… | |
… | |
132 | destroy (); |
111 | destroy (); |
133 | return; |
112 | return; |
134 | } |
113 | } |
135 | } |
114 | } |
136 | |
115 | |
137 | socket_ev.poll (socket_ev.poll () & ~PE_W); |
116 | socket_ev.poll (socket_ev.poll () & ~EV_WRITE); |
138 | } |
117 | } |
139 | |
118 | |
140 | /****************************************************************************** |
119 | /****************************************************************************** |
141 | * |
120 | * |
142 | * Start of read routines. |
121 | * Start of read routines. |
… | |
… | |
153 | if (inbuf_len >= 2 + pkt_len) |
132 | if (inbuf_len >= 2 + pkt_len) |
154 | return 2 + pkt_len; |
133 | return 2 + pkt_len; |
155 | |
134 | |
156 | if (inbuf_len == sizeof (inbuf)) |
135 | if (inbuf_len == sizeof (inbuf)) |
157 | { |
136 | { |
158 | send_packet_printf ("drawinfo %d input buffer overflow - closing connection.", NDI_RED); |
137 | send_packet_printf ("drawinfo %d input buffer overflow - closing connection.", NDI_RED | NDI_REPLY); |
159 | destroy (); |
138 | destroy (); |
160 | return -1; |
139 | return -1; |
161 | } |
140 | } |
162 | } |
141 | } |
163 | |
142 | |
… | |
… | |
182 | |
161 | |
183 | /** |
162 | /** |
184 | * Dispatch table for the server. |
163 | * Dispatch table for the server. |
185 | */ |
164 | */ |
186 | static struct packet_type packets[] = { |
165 | static struct packet_type packets[] = { |
187 | {"ncom", PC(NewPlayerCmd) PF_PLAYING }, |
166 | {"ncom", PC(NewPlayerCmd) PF_PLAYING | PF_COMMAND6 }, |
188 | {"command", PC(PlayerCmd) PF_PLAYING }, |
167 | {"command", PC(PlayerCmd) PF_PLAYING | PF_COMMAND0 }, |
189 | |
168 | |
190 | {"examine", PC(ExamineCmd) PF_PLAYING }, |
169 | {"examine", PC(ExamineCmd) PF_PLAYING }, |
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170 | {"ex", PC(ExCmd) PF_PLAYING }, |
191 | {"apply", PC(ApplyCmd) PF_PLAYING }, |
171 | {"apply", PC(ApplyCmd) PF_PLAYING }, |
192 | {"reply", PC(ReplyCmd) 0 }, |
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193 | {"lookat", PC(LookAt) PF_PLAYING }, |
172 | {"lookat", PC(LookAt) PF_PLAYING }, |
194 | {"lock", PC(LockItem) PF_PLAYING }, |
173 | {"lock", PC(LockItem) PF_PLAYING }, |
195 | {"mark", PC(MarkItem) PF_PLAYING }, |
174 | {"mark", PC(MarkItem) PF_PLAYING }, |
196 | {"move", PC(MoveCmd) PF_PLAYING }, |
175 | {"move", PC(MoveCmd) PF_PLAYING }, |
197 | {"ext", PC(ExtCmd) 0 }, /* CF+ */ |
176 | {"ext", PC(ExtCmd) 0 }, // CF+ |
198 | {"mapredraw", PC(MapRedrawCmd) 0 }, /* Added: phil */ |
177 | {"mapredraw", PC(MapRedrawCmd) 0 }, |
199 | {"mapinfo", PC(MapInfoCmd) 0 }, /* CF+ */ |
178 | {"mapinfo", PC(MapInfoCmd) 0 }, // CF+ |
200 | |
179 | |
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180 | {"reply", SC(ReplyCmd) 0 }, |
201 | {"exti", SC(ExtiCmd) 0 }, /* CF+ */ |
181 | {"exti", SC(ExtiCmd) 0 }, // CF+ |
202 | {"addme", SC(AddMeCmd) 0 }, |
182 | {"addme", SC(AddMeCmd) 0 }, |
203 | {"askface", SC(SendFaceCmd) 0 }, /* Added: phil */ |
183 | {"askface", SC(AskFaceCmd) 0 }, |
204 | {"requestinfo", SC(RequestInfo) 0 }, |
184 | {"requestinfo", SC(RequestInfo) 0 }, |
205 | {"setfacemode", SC(SetFaceMode) 0 }, |
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206 | {"setsound", SC(SetSound) 0 }, |
185 | {"setsound", SC(SetSound) 0 }, |
207 | {"setup", SC(SetUp) 0 }, |
186 | {"setup", SC(SetUp) 0 }, |
208 | {"version", SC(VersionCmd) 0 }, |
187 | {"version", SC(VersionCmd) 0 }, |
209 | {"toggleextendedinfos", SC(ToggleExtendedInfos) 0 }, /*Added: tchize */ |
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210 | {"toggleextendedtext", SC(ToggleExtendedText) 0 }, /*Added: tchize */ |
188 | {"toggleextendedtext", SC(ToggleExtendedText) 0 }, /*Added: tchize */ |
211 | {"asksmooth", SC(AskSmooth) 0 }, /*Added: tchize (smoothing technologies) */ |
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212 | }; |
189 | }; |
213 | |
190 | |
214 | bool |
191 | bool |
215 | client::may_execute (const packet_type *pkt) const |
192 | client::may_execute (const packet_type *pkt) const |
216 | { |
193 | { |
217 | return (!(pkt->flags & PF_PLAYER) || pl) |
194 | return (!(pkt->flags & PF_PLAYER) || pl) |
218 | && (!(pkt->flags & PF_PLAYING) || (pl && pl->state == ST_PLAYING)); |
195 | && (!(pkt->flags & PF_PLAYING) || state == ST_PLAYING); |
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196 | } |
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197 | |
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198 | // HACK: some commands currently should be executed |
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199 | // even when the player is frozen. this hack detects |
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200 | // those commands. it should be folded into may_execute, |
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201 | // but kept seperate to emphasise the hack aspect, i.e. |
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202 | // do it better, then remove. |
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203 | static bool |
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204 | always_immediate (const client *ns, const packet_type *pkt, const char *data, int len) |
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205 | { |
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206 | if (!(pkt->flags & (PF_COMMAND0 | PF_COMMAND6))) |
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207 | return false; |
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208 | |
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209 | if (!ns->pl || !ns->pl->ob || !ns->pl->ob->map) |
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210 | return false; |
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211 | |
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212 | if (pkt->flags & PF_COMMAND6) |
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213 | { |
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214 | data += 6; |
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215 | len -= 6; |
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216 | } |
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217 | |
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218 | if (len > 4 && data [ 3] == ' ' && !strncmp (data, "say " , 4)) return true; |
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219 | if (len > 5 && data [ 4] == ' ' && !strncmp (data, "chat " , 5)) return true; |
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220 | if (len > 6 && data [ 5] == ' ' && !strncmp (data, "shout " , 6)) return true; |
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221 | if (len > 8 && data [ 7] == ' ' && !strncmp (data, "suicide " , 8)) return true; |
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222 | if (len > 18 && data [17] == ' ' && !strncmp (data, "accept-invitation ", 18)) return true; |
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223 | |
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224 | if (len == 7 && !strcmp (data, "suicide")) return true; |
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225 | |
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226 | return false; |
219 | } |
227 | } |
220 | |
228 | |
221 | void |
229 | void |
222 | client::execute (const packet_type *pkt, char *data, int datalen) |
230 | client::execute (const packet_type *pkt, char *data, int datalen) |
223 | { |
231 | { |
224 | if (may_execute (pkt)) |
232 | if (may_execute (pkt) || always_immediate (this, pkt, data, datalen)) |
225 | { |
233 | { |
226 | //TODO: only one format |
234 | //TODO: only one format |
227 | if (pkt->flags & PF_PLAYER) |
235 | if (pkt->flags & PF_PLAYER) |
228 | ((void (*)(char *, int, player *))pkt->cb)((char *)data, datalen, pl); |
236 | ((void (*)(char *, int, player *))pkt->cb)((char *)data, datalen, pl); |
229 | else |
237 | else |
230 | ((void (*)(char *, int, client *))pkt->cb)((char *)data, datalen, this); |
238 | ((void (*)(char *, int, client *))pkt->cb)((char *)data, datalen, this); |
231 | } |
239 | } |
232 | else |
240 | else |
233 | send_packet_printf ("drawinfo %d ERROR: you cannot execute '%s' now.", NDI_RED, pkt->name); |
241 | send_packet_printf ("drawinfo %d ERROR: you cannot execute '%s' now.", NDI_RED | NDI_REPLY, pkt->name); |
234 | } |
242 | } |
235 | |
243 | |
236 | bool |
244 | bool |
237 | client::handle_packet () |
245 | client::handle_packet () |
238 | { |
246 | { |
… | |
… | |
246 | pl && pl->ob ? &pl->ob->name : "[anonymous]"); |
254 | pl && pl->ob ? &pl->ob->name : "[anonymous]"); |
247 | destroy (); |
255 | destroy (); |
248 | return false; |
256 | return false; |
249 | } |
257 | } |
250 | |
258 | |
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259 | uint8_t save_byte = inbuf [pkt_len]; // rather ugly |
251 | inbuf [pkt_len] = 0; /* Terminate buffer - useful for string data */ |
260 | inbuf [pkt_len] = 0; /* temporarily terminate buffer - useful for string data */ |
252 | |
261 | |
253 | /* First, break out beginning word. There are at least |
262 | /* First, break out beginning word. There are at least |
254 | * a few commands that do not have any paremeters. If |
263 | * a few commands that do not have any paremeters. If |
255 | * we get such a command, don't worry about trying |
264 | * we get such a command, don't worry about trying |
256 | * to break it up. |
265 | * to break it up. |
… | |
… | |
270 | } |
279 | } |
271 | |
280 | |
272 | for (packet_type *pkt = packets; pkt < packets + (sizeof (packets) / sizeof (packets[0])); ++pkt) |
281 | for (packet_type *pkt = packets; pkt < packets + (sizeof (packets) / sizeof (packets[0])); ++pkt) |
273 | if (!strcmp ((char *)inbuf + 2, pkt->name)) |
282 | if (!strcmp ((char *)inbuf + 2, pkt->name)) |
274 | { |
283 | { |
275 | if (pkt->flags & PF_PLAYER) |
284 | if (pkt->flags & PF_PLAYER && !always_immediate (this, pkt, data, datalen)) |
276 | queue_command (pkt, data, datalen); |
285 | queue_command (pkt, data, datalen); |
277 | else |
286 | else |
278 | execute (pkt, data, datalen); |
287 | execute (pkt, data, datalen); |
279 | |
288 | |
280 | goto next_packet; |
289 | goto next_packet; |
281 | } |
290 | } |
282 | |
291 | |
283 | // If we get here, we didn't find a valid command. |
292 | // If we get here, we didn't find a valid command. |
284 | send_packet_printf ("drawinfo %d ERROR: command '%s' not supported.", NDI_RED, (char *)inbuf + 2); |
293 | send_packet_printf ("drawinfo %d ERROR: command '%s' not supported.", NDI_RED | NDI_REPLY, (char *)inbuf + 2); |
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294 | |
285 | next_packet: |
295 | next_packet: |
|
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296 | inbuf [pkt_len] = save_byte; // rather ugly |
286 | skip_packet (pkt_len); |
297 | skip_packet (pkt_len); |
287 | |
298 | |
288 | // input buffer has space again |
299 | // input buffer has space again |
289 | socket_ev.poll (socket_ev.poll () | PE_R); |
300 | socket_ev.poll (socket_ev.poll () | EV_READ); |
290 | |
301 | |
291 | return true; |
302 | return true; |
292 | } |
303 | } |
293 | |
304 | |
294 | // callback called when socket is either readable or writable |
305 | // callback called when socket is either readable or writable |
295 | void |
306 | void |
296 | client::socket_cb (iow &w, int got) |
307 | client::socket_cb (iow &w, int revents) |
297 | { |
308 | { |
298 | //TODO remove when we have better socket cleanup logic |
309 | //TODO remove when we have better socket cleanup logic |
299 | if (status == Ns_Dead) |
310 | if (destroyed ()) |
300 | { |
311 | { |
301 | socket_ev.poll (0); |
312 | socket_ev.poll (0); |
302 | return; |
313 | return; |
303 | } |
314 | } |
304 | |
315 | |
305 | if (got & PE_W) |
316 | if (revents & EV_WRITE) |
306 | { |
317 | { |
307 | write_outputbuffer (); |
318 | write_outputbuffer (); |
308 | |
319 | |
309 | if (!outputbuffer.len) |
320 | if (!outputbuffer.len) |
310 | socket_ev.poll (socket_ev.poll () & ~PE_W); |
321 | socket_ev.poll (socket_ev.poll () & ~EV_WRITE); |
311 | } |
322 | } |
312 | |
323 | |
313 | if (got & PE_R) |
324 | if (revents & EV_READ) |
314 | { |
325 | { |
315 | //TODO: rate-limit tcp connection in better ways, important |
326 | //TODO: rate-limit tcp connection in better ways, important |
316 | |
327 | |
317 | int amount = sizeof (inbuf) - inbuf_len; |
328 | int amount = sizeof (inbuf) - inbuf_len; |
318 | |
329 | |
319 | if (!amount) |
330 | if (!amount) |
320 | { |
331 | { |
321 | // input buffer full |
332 | // input buffer full |
322 | socket_ev.poll (socket_ev.poll () & ~PE_R); |
333 | socket_ev.poll (socket_ev.poll () & ~EV_READ); |
323 | return; |
334 | return; |
324 | } |
335 | } |
325 | |
336 | |
326 | amount = read (fd, inbuf + inbuf_len, amount); |
337 | amount = read (fd, inbuf + inbuf_len, amount); |
327 | |
338 | |
… | |
… | |
343 | } |
354 | } |
344 | else |
355 | else |
345 | { |
356 | { |
346 | inbuf_len += amount; |
357 | inbuf_len += amount; |
347 | |
358 | |
348 | cst_tot.ibytes += amount; |
|
|
349 | cst_lst.ibytes += amount; |
|
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350 | |
|
|
351 | cmd_ev.start (); |
|
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352 | } |
|
|
353 | } |
|
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354 | } |
|
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355 | |
|
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356 | // called whenever we have additional commands to process |
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357 | void |
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358 | client::cmd_cb (iw &w) |
|
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359 | { |
|
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360 | if (handle_packet ()) |
359 | if (handle_packet ()) |
361 | w.start (); |
360 | { |
362 | else |
361 | while (handle_packet ()) |
363 | flush (); |
362 | ; |
|
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363 | |
|
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364 | flush (); |
|
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365 | } |
|
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366 | } |
|
|
367 | } |
364 | } |
368 | } |
365 | |
369 | |
366 | /******************************************************************************* |
370 | /******************************************************************************* |
367 | * |
371 | * |
368 | * Start of write related routines. |
372 | * Start of write related routines. |
… | |
… | |
377 | */ |
381 | */ |
378 | void |
382 | void |
379 | client::send (void *buf_, int len) |
383 | client::send (void *buf_, int len) |
380 | { |
384 | { |
381 | char *buf = (char *)buf_; |
385 | char *buf = (char *)buf_; |
382 | char *pos = buf; |
|
|
383 | int amt = 0; |
|
|
384 | |
386 | |
385 | if (status == Ns_Dead || !buf) |
387 | if (destroyed () || !buf) |
386 | return; |
388 | return; |
387 | |
389 | |
388 | if ((len + outputbuffer.len) > SOCKETBUFSIZE) |
390 | if (len + outputbuffer.len > SOCKETBUFSIZE) |
389 | { |
391 | { |
390 | LOG (llevDebug, "socket on fd %d has overrun internal buffer - marking as dead\n", fd); |
392 | LOG (llevDebug, "socket on fd %d has overrun internal buffer - marking as dead\n", fd); |
391 | destroy (); |
393 | // shutdown the socket, this is safer than destroying it immediately |
|
|
394 | // as lots of code in the callchain might still access the map etc. |
|
|
395 | shutdown (fd, SHUT_RDWR); |
392 | return; |
396 | return; |
393 | } |
397 | } |
394 | |
398 | |
395 | int avail, end; |
399 | int avail, end; |
396 | |
400 | |
… | |
… | |
421 | * shortcut function. |
425 | * shortcut function. |
422 | */ |
426 | */ |
423 | void |
427 | void |
424 | client::send_packet (packet &sl) |
428 | client::send_packet (packet &sl) |
425 | { |
429 | { |
426 | if (status == Ns_Dead) |
430 | if (destroyed ()) |
427 | return; |
431 | return; |
428 | |
432 | |
429 | if (sl.length () >= MAXSOCKBUF) |
433 | if (sl.length () > MAXSOCKBUF) |
430 | { |
434 | { |
431 | LOG (llevError, "Trying to send a buffer beyond properly size, len =%d\n", sl.length ()); |
435 | LOG (llevError, "Trying to send a buffer beyond properly size, len =%d\n", sl.length ()); |
432 | /* Almost certainly we've overflowed a buffer, so quit now to make |
436 | /* Almost certainly we've overflowed a buffer, so quit now to make |
433 | * it easier to debug. |
437 | * it easier to debug. |
434 | */ |
438 | */ |
… | |
… | |
472 | va_end (ap); |
476 | va_end (ap); |
473 | |
477 | |
474 | send_packet (sl); |
478 | send_packet (sl); |
475 | } |
479 | } |
476 | |
480 | |
|
|
481 | void |
|
|
482 | client::send_msg (int color, const char *type, const char *msg) |
|
|
483 | { |
|
|
484 | if (!msg || !type) // it can happen (for example, missing attack messages cause this) |
|
|
485 | { |
|
|
486 | LOG (logBacktrace | llevError, "send_msg(%d,%p,%p) called with NULL msg or type.\n", color, type, msg); |
|
|
487 | return; |
|
|
488 | } |
|
|
489 | |
|
|
490 | int len = strlen (msg); |
|
|
491 | |
|
|
492 | if (!(color & NDI_VERBATIM) |
|
|
493 | && (msg_is_special (msg) |
|
|
494 | || (type [0] == 'c' && type [1] == '/') || len > (MAXSOCKBUF - 128))) |
|
|
495 | cfperl_send_msg (this, color, type, msg); |
|
|
496 | else |
|
|
497 | send_packet_printf ("msg %d %s %s", color & NDI_CLIENT_MASK, type, msg); |
|
|
498 | } |
|
|
499 | |
|
|
500 | void |
|
|
501 | client::send_drawinfo (const char *msg, int flags) |
|
|
502 | { |
|
|
503 | send_msg (flags, "log", msg); |
|
|
504 | } |
|
|
505 | |
477 | /*********************************************************************** |
506 | /*********************************************************************** |
478 | * |
507 | * |
479 | * packet functions/utilities |
508 | * packet functions/utilities |
480 | * |
509 | * |
481 | **********************************************************************/ |
510 | **********************************************************************/ |
… | |
… | |
487 | int len = strlen (name); |
516 | int len = strlen (name); |
488 | memcpy (cur, name, len); cur += len; |
517 | memcpy (cur, name, len); cur += len; |
489 | *cur++ = ' '; |
518 | *cur++ = ' '; |
490 | } |
519 | } |
491 | |
520 | |
|
|
521 | packet &packet::operator <<(const ber32 v) |
|
|
522 | { |
|
|
523 | enum { maxlen = 32 / 7 + 1}; |
|
|
524 | uint8 buf[maxlen]; |
|
|
525 | uint8 *p = buf + maxlen; |
|
|
526 | uint32 val = v.val; |
|
|
527 | |
|
|
528 | *--p = val & 0x7F; |
|
|
529 | |
|
|
530 | while (val > 0x7F) |
|
|
531 | { |
|
|
532 | val >>= 7; |
|
|
533 | *--p = (val & 0x7F) | 0x80; |
|
|
534 | } |
|
|
535 | |
|
|
536 | return *this << data (p, buf + maxlen - p); |
|
|
537 | } |
|
|
538 | |
492 | packet &packet::operator <<(const data &v) |
539 | packet &packet::operator <<(const data &v) |
493 | { |
540 | { |
494 | if (room () < v.len) |
541 | if (room () < v.len) |
495 | reset (); |
542 | reset (); |
496 | else |
543 | else |
… | |
… | |
533 | return reset (); |
580 | return reset (); |
534 | |
581 | |
535 | cur += len; |
582 | cur += len; |
536 | } |
583 | } |
537 | |
584 | |
538 | /****************************************************************************** |
|
|
539 | * |
|
|
540 | * statistics logging functions. |
|
|
541 | * |
|
|
542 | ******************************************************************************/ |
|
|
543 | |
|
|
544 | #ifdef CS_LOGSTATS |
|
|
545 | |
|
|
546 | /* cst_tot is for the life of the server, cst_last is for the last series of |
|
|
547 | * stats |
|
|
548 | */ |
|
|
549 | CS_Stats cst_tot, cst_lst; |
|
|
550 | |
|
|
551 | /** |
|
|
552 | * Writes out the gathered stats. We clear cst_lst. |
|
|
553 | */ |
|
|
554 | void |
|
|
555 | write_cs_stats (void) |
|
|
556 | { |
|
|
557 | time_t now = time (NULL); |
|
|
558 | |
|
|
559 | /* If no connections recently, don't both to log anything */ |
|
|
560 | if (cst_lst.ibytes == 0 && cst_lst.obytes == 0) |
|
|
561 | return; |
|
|
562 | |
|
|
563 | /* CSSTAT is put in so scripts can easily find the line */ |
|
|
564 | LOG (llevInfo, "CSSTAT: %.16s tot %d %d %d %d inc %d %d %d %d\n", |
|
|
565 | ctime (&now), cst_tot.ibytes, cst_tot.obytes, cst_tot.max_conn, |
|
|
566 | now - cst_tot.time_start, cst_lst.ibytes, cst_lst.obytes, cst_lst.max_conn, now - cst_lst.time_start); |
|
|
567 | cst_lst.ibytes = 0; |
|
|
568 | cst_lst.obytes = 0; |
|
|
569 | cst_lst.time_start = now; |
|
|
570 | } |
|
|
571 | #endif |
|
|
572 | |
|
|